Home / 27,861.49-38,448.72-15,114.68

Finding the Fourth Proportional to 27,861.49, 38,448.72 and 15,114.68

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Solution

The fourth proportional to 27,861.49, 38,448.72 and 15,114.68 is: 20,858.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,861.49 : 38,448.72 = 15,114.68 : x
  2. Step 2: Convert to fraction form
    27,861.49/38,448.72 = 15,114.68/x
  3. Step 3: Cross multiply
    27,861.49x = 38,448.72 × 15,114.68
  4. Step 4: Simplify right side
    27,861.49x = 581,140,099.21
  5. Step 5: Solve for x
    x = 581,140,099.21/27,861.49
  6. Step 6: Final answer
    x = 20,858.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.